Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 60, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 18, 1998, 5:19 PM CDT for Uvalde County, Zavala County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 18, 1998, 5:19 PM CDT (22:19 UTC)
- Expired
- Aug 18, 1998, 8:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Uvalde County, TX, Zavala County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 10.3 hours before the alert went out and 109 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 646 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -69 m²/s²
- 0-3 km storm-relative helicity
- -16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 182220 FFWSAT TXC463-507-190115- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 519 PM CDT TUE AUG 18 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... UVALDE COUNTY IN SOUTH CENTRAL TEXAS ZAVALA COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 815 PM CDT * FLASH FLOODING EXPECTED AROUND- ACROSS MUCH OF UVALDE COUNTY AND NORTHERN ZAVALA COUNTY * AT 515 PM CDT...SHOWERS AND THUNDERSTORMS CONTINUED FROM EAGLE PASS TO LA PRYOR...UVALDE AND VANDERPOOL. RAINFALL RATES HAD DECREASED TO AROUNG ONE HALF AN INCH PER HOUR...HOWEVER THIS WAS FALLING INTO ALREADY FLOODED AREAS. MOST OF THE ROADS IN AND AROUND UVALDE REMAINED CLOSED WHILE IN ZAVALA COUNTY HWY 83 NEAR LA PRYOR AND HWY 117 BETWEEN BATESVILLE AND UVALDE WERE CLOSED. SINCE THIS MORNING UP TO 10 INCHES OF RAIN HAS FALLEN ACROSS PORTIONS OF SOUTHERN UVALDE COUNTY RUNOFF WILL BE SLOW AND FLOODING WILL CONTIMUE INTO THE EVENING HOURS EVEN THOUGH THE RAINS WILL SUBSIDE. SOME AREAS IN AND AROUND UVALDE HAVE BEEN EVACUATED. PLEASE HEED THE ADVICE OF LOCAL LAW ENFORECEMENT AND EVACUATE IF ASKED TO DO SO. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING THE ROAD. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY AND THE ROAD BENEATH MAY NOT BE INTACT. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY...IF YOU CAN DO SO SAFELY. IT ONLY TAKES A FOOT OR TWO OF FLOWING WATER TO WASH MOST CARS AWAY. REMEMBER...MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. ~&
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 18, 5:00 PM CDT, 19 minutes before
TXZ171>173-183>194-202>209-217>225-228-191100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 500 PM CDT TUE AUG 18 1998 ...FLASH FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING FOR THE WESTERN HILL COUNTRY AND PARTS OF SOUTH CENTRAL TEXAS... A PERSISTENT AREA OF LOW PRESSURE ALOFT LINGERS WEST OF THE RIO GRANDE RIVER NEAR BIG BEND WITH ATTENDENT MODERATE INSTABILITY AND COPIOUS AMOUNTS OF MOISTURE. THIS PATTERN SUPPORTS A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS WITH HEAVY RAINFALL THIS EVENING THROUGH WEDNESDAY. FLASH FLOODING IS POSSIBLE GENERALLY WEST OF A LINE FROM NORTHEAST EDWARDS COUNTY TO UVALDE TO CARRIZO SPRINGS. RAINFALL AMOUNTS FROM SCATTERED SHOWERS AND THUNDERSTORMS THROUGH WEDNESDAY WILL AVERAGE 1/2 TO 1 INCH...WITH SCATTERED AMOUNTS OF 4 TO 6 INCHES POSSIBLE OVER THE FLASH FLOOD WATCH AREA. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: SOUTHWEST TEXAS FROM MIDLAND LBBSPSMAF...WWUS35 KMAF CONCHO VALLEY FROM SAN ANGELO LBBSPSSJT...WWUS35 KSJT NORTH TEXAS FROM FORT WORTH` FTWSPSFTW...WWUS35 KFTW SOUTHEAST TEXAS FROM HOUSTON/GALVESTON SATSPSHOU...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
Special weather statement, Aug 18, 5:00 PM CDT, 19 minutes before
TXZ171>173-183>194-202>209-217>225-228-191100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 500 PM CDT TUE AUG 18 1998 ...FLASH FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING FOR THE WESTERN HILL COUNTRY AND PARTS OF SOUTH CENTRAL TEXAS... A PERSISTENT AREA OF LOW PRESSURE ALOFT LINGERS WEST OF THE RIO GRANDE RIVER NEAR BIG BEND WITH ATTENDENT MODERATE INSTABILITY AND COPIOUS AMOUNTS OF MOISTURE. THIS PATTERN SUPPORTS A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS WITH HEAVY RAINFALL THIS EVENING THROUGH WEDNESDAY. FLASH FLOODING IS POSSIBLE GENERALLY WEST OF A LINE FROM NORTHEAST EDWARDS COUNTY TO UVALDE TO CARRIZO SPRINGS. RAINFALL AMOUNTS FROM SCATTERED SHOWERS AND THUNDERSTORMS THROUGH WEDNESDAY WILL AVERAGE 1/2 TO 1 INCH...WITH SCATTERED AMOUNTS OF 4 TO 6 INCHES POSSIBLE OVER THE FLASH FLOOD WATCH AREA. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: SOUTHWEST TEXAS FROM MIDLAND LBBSPSMAF...WWUS35 KMAF CONCHO VALLEY FROM SAN ANGELO LBBSPSSJT...WWUS35 KSJT NORTH TEXAS FROM FORT WORTH` FTWSPSFTW...WWUS35 KFTW SOUTHEAST TEXAS FROM HOUSTON/GALVESTON SATSPSHOU...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 6:44 AM CDT | Flash Flood Warning | EWX | Kinney, Maverick | 2 hr |
| Aug 18, 10:42 AM CDT | Flash Flood Warning | EWX | Uvalde, Zavala | 3 hr |
| Aug 18, 1:05 PM CDT | Flash Flood Warning | EWX | Kinney | 4 hr |
| Aug 18, 1:37 PM CDT | Flash Flood Warning | EWX | Uvalde, Zavala | 4 hr |
| Aug 18, 4:59 PM CDT | Flash Flood Warning | EWX | Kinney | 3 hr |
Nearby
Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.